1,1,1,2-Tetrachloroethane
Hudson Waterworks
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
16
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 5 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 1 ppb
The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-03-26 | 776792 | ND |
| 2014-03-26 | 776786 | ND |
| 2014-03-26 | 776789 | ND |
| 2014-03-31 | 777341 | ND |
| 2014-06-16 | 797090 | ND |
| 2015-02-04 | 841974 | ND |
| 2017-04-03 | 980883 | ND |
| 2017-04-03 | 980874 | ND |
| 2017-04-03 | 980878 | ND |
| 2017-04-04 | 981146 | ND |
| 2017-04-05 | 981439 | ND |
| 2018-06-25 | 1063650 | ND |
| 2018-10-23 | 1088635 | ND |
| 2019-02-26 | 1106795 | ND |
| 2019-05-08 | 1119849 | ND |
| 2019-08-06 | 1139065 | ND |